Holy fuck that's extremely hot. Your pit is an inspiration to me. I've always wanted to create a backyard pit like that one... would love to chat sometime about the process of building one :D OINK!
I love those kind of mud pits. Thick and sticky. Ultimate fantasy is to be sucked under in mud like that. . . those sounds are making me hungry for bottomless mud. unnnf.
Video: It's My Birthday, I'll Pie If I Want To! (part 2)12/28/18report
It really is a great spot. It's secluded and the path to it is really overgrown, and the main trail itself is deserted because it's a "wildlife management area" and not a park. There's even a cleanup spot with moving water that washes the mud downstream.